Pick-motion for looms.



H. H. KELLEY.

PICK MoTloN FOR Looms.

Patented Feb. 15,1916.

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H. H. KELLEY.

PICK MOTION FOR LOOMS.

APPLICATION FILED OCT. B, I9l4.

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HARRY H. KELLEY, or ATLANTA, GEORGIA.

Specification of Letters Patent.

PICK-MOTION FOR LOQMS.

Patented Feb. 15, 1916.

Application led October 8, 1914. Serial No. 865,717.

To all whomV it may concern.'

Be it known that. I, Hauer `I-I. KELLEY,

useful Improvements in Pick-.Motions for Looms; and I do hereby declare the following to be a full, clear, and exact description-,- of the invention, such as will enable-others skilled in the art to which it appertains to A make and use the same, reference beinghad to the accompanying, drawings, andato letters or figures of reference marked thereon, which form a part of this specification.

My invent-ion relates to improvements in pick `motion 'for looms.

The object of the invention is to provide improved means for operating a picker stick, so as to cause the picker` stick to travel in a horizontal line to make a more effective blow and to insure a quick action of the parts.

The invention also comprehends improve# ments in the construction and arrangement of parts, which will be hereinafter described and particularly pointedout in the claims.

In the accompanyingdrawings: Figure 1 is a side elevation of my improved pick.

motion, the parts being shown in an intermediate position. Fig. 2 is a face view of the latter.V Figs. 3 and 4 are diagrammatic views, illustrating the movement of the pick cam 7, having an abrupt edge 8. Slidably mounted on the shaft 3 is a sleeve 9,A closed at its outer end and `provided on its inner edge with a cam 10, formed with an abrupt Aedgell, the camsurface and the abrupt edge corresponding with thecam surface. 7

Near the closed `outer end of the sleeve `9 are two` openings 12v andl3, and tting the opening 13 is a cock 14, for regulating the exit of air, as will be presently explained.v n

Depending from the sleeve are lugs-15 and tting between :same vand pivotally mounted on a pin 16 is elink 17. The lower end of link 17 is pivoted to an arm 18, as at 19, the inner end of said arm being pivoted at 2Oa to lugs 20, extending from the lower end of plate 2. The outer end of arm 18 projects beyond thelink 17 and pivoted thereto as at 22, is the lower end of a picker stick 23. 'The picker stick is mounted in a cast-ing which isformed with an opening to straddle the sleeve 9. Extending up from the sleeveVQ and diametrically disposed to lugs 15 are lugs 24, and pivoted between said lugs at 25 is a horizontal link 26, theouter end of the latter being pivoted at 27 to the picker stick.

Suitably supported Von the inside of frame 1, is a yoke 28 `formed with an opening 29.1, Y

Pivoted tothe picker stick at 30 is one end of a spring 31,V the inner end of which is threaded and is passed through the opening in the yoke, the end of said spring being threaded and a nut 33 applied, whereby to adjust the tension of the spring.

In operation, when the sprocket wheel 5 is rotated in direction of the arrow a, shown in Fig. 2, the cam 7 will act on the cam 10 and force the sleeve out. While the sleeve is being moved out, air is drawn ,through the opening 12,` which subsequently acts as a cushion, whenthe parts are returned to normal position. In the outward movement of the sleeve, the picker stick rocks on the pivot 22, and because of the arm 18 and links 17, and 26, the upper end of the picker stick travels in a horizontal line, as indicated by the dotted lines in Figs. 3 and 4. As the pivot 16 of link 17 moves with the sleeve 9, in a horizontal line, and because the arm 18 to which the said link is pivoted, is mounted to rock on a iixed part of the frame, said sleeve imparts to pivot 19, consequently to the lower end of the picker stick, a slight vertical motion. The length of the link 17 and the distance between pins 19.` and 22 is so proportioned thatthe vertical motion of pin 22 is equal to the rise of p the arc described by the upper end of the and edge 8 on the hub ofthe sprocket wheel.

picker stick, thus causing the latter end of saidrpicker stick to travel in a straight line.

.shown in Fig. '4.` When the" sleeve 9 is moved toward its normal position, air trapped between the closed end of the sleeve and the outer end of the shaft acts to re lieve the stick, the air' gradually' escaping through opening 19J and cock 14. After the ooe-nino' 12 )asses the end of the shaft 3,

l n l the air confined between the end of the sleeve The link 26 acts Yto transmit the motion of the sleeve'E) to the picker stick, which with thel aforesaid link 17 and LarmlS impartsV moyement to the picker stick, whereby the Vstick willtravel in a horizontalpath,A and i means for retractingthe sleeve and with it upperend lwill travel in a horizontal path, as stated.

` Vliat I claim is:

1. In a pick motion for looms, the combination of av shaft, a cam on the shaftfa sleeve mounted to slide on the shaft, said sleeve having a camwith which the aforef.

said cam coperaties, a picker stick, asupf port, an arm pivoted to thepickerstick and pivotally mounted at, its opposite end to the support, a link pivoted to the sleeve and the arm, a second link pivoted to the picker stick and the,sleeve, whereby when the cams move the sleeve the upper end of thepicker the picker stick after operation ofthe cams. 2. A pick motion vfor looms, comprising a shaft, a rotating Vcam mounted on the shaft, a sleeveslidably mountedon the shaft and operated iny one direction by the cam, a

picker stick, means including an Varniand links, and a spring for operating said sleeve with said picker stick to cause the upper end of the latter to travel in ahorizontal 'path, and a pneumatic cushionto absorb the shock when the sleeve is operated.A Y

3. A pick motionfor looms comprising a suppo'rn'a shaft extending outwardly therel from, av rotating Vcam mounted on the shaft,

ya 'sleeve mounted on the shaft and havingI a cam surface with which the 'irst men`V tioned cam cooperates, said sleeve having" openings, there being'a chamber formedloef tween the ends of the shaftand 'the sleeve and with which the openings communicate, whereby to form a cushion forl the sleeve, a picker stick, anl arm pivoted to the'` picker stick andthesupport, a linkconnecting the arm andthe sleeve, a second link'pivoted to` tlie'sleeve and tothe picker stick, whereby to ca usefthe upper end of the pickerstick toV move in a` 4horizontal path.

4. In a 'pick motion'for looms, the 'combi- L nation cfa slidablefsleeve, means for sliding fthe sleeve in jone direction, a support, a

picker stick, an arm pivoted to the support and to the lower portion of the picker stick, a link pivotally connected to the sleeve and to the picker stick above the pivotal point of the arm, means for moving the picker stick inthe reverse direction, and means for cusliioning vthe picker stick when it is'returned to normal position.

5. 'A pick motion for looms comprising a frame, a picker stick, means for moving the picker stick in one direction including a cam, a sliding element actuated by the cam, and links betweenl the frame,`picker stick and sliding element, said cam, sliding ele ment andl links causing the lower end of the picker stick to move in thev arc of a e circle and the upper end of the said picker stick to move in a straight line, and means independentof the cam for quicklyreversing the movement of the picker stick.

6.A pick motion for looms comprising a frame `a picker lstick and means including a cam, a sliding sleeve, and connections between the frame, picker stick and sliding sleeve for moving' the picker stick in one direction to causeits lower end to move in the'arc' of a circle and its upper end to move in a straight line, and means for quickly reversing the picker stick inthe heretofore de` scribed path;

'r'.v A pick motion for looms comprising a picker stick, means for moving the picker stickin'one direction rincluding a positively drivensliding element and links which* cause the lower end'of the picker stick to move in a curved path and'itsV upper end to move in a straight line, means for quickly reversing the said movement ofV said picker stick,`and a pneumatic cushion to absorb the shock of the' movement of the picker stick.

8. A pick motion for loomscomprising a picker stick, means for mounting the picker stick so that when said picker stick is moved inone direction its Vupper end will travel in a straight line and said mounting will rock and cause the lower endof said picker stick totravel in the arc of a circle, a slidingtele-y menti for supporting said mounting, a cam directly engaging the sliding element to operate same in one direction, `and means for quickly reversing the picker stick.

9.' A pick motion for looms comprising a reciprocating picker stick, a sliding element v having' a cam surface, a cam engaging said cainsurface to operatethe sliding element in one direction, links for supporting the lower end ofthe picker stick, said links being. moved by theslidinggelement whereby whenthe cam operates the slidingelement the" 'opei'ative` end of 'the pickeifstick is caused to travel in a `straight line in one path of its reciprocation, and means forreturning the Vparts to normaly position when thef camv isl disengag Y d 'from the camv surface oithelslidingielement. ff

10. A pick motion for looms comprising a reciprocating picker stick, a sliding element, links coperating With the picker stick and the sliding element to cause its upper end to travel in a straight line, a cam acting directly on the sliding element to move same in one direction of its movement, and means for causing the sliding element to quickly travel in its other path of move ment when the cam is disengaged there- 10 from. v

In testimony whereof I have signed my name to this specication in the presence of two subscribing Witnesses.

HARRY H. KELLEY. Witnesses F. C. MYERS, O. A. SHARPLESS.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C. 

